Type: Seminar

Distribution: World

Expiry: 3 Aug 2012

Auth: zhangou@bari.maths.usyd.edu.au

Speaker: Dr. Henry Segerman (Melbourne) http://www.ms.unimelb.edu.au/~segerman/ Time: Tuesday, July 17, 12(NOON)--1PM Room: Carslaw 159 Lunch: after the talk (at Taste at Sydney Uni, i.e. "Law School Annex Cafe") --------------------------------------------------- Title: Triangulations of Hyperbolic 3-Manifolds Admitting Strict Angle Structures Abstract: it is conjectured that every hyperbolic 3-manifold with torus boundary components has a decomposition into positive volume ideal hyperbolic tetrahedra (a "geometric" triangulation). Under a mild homology assumption on the manifold, we construct topological ideal triangulations which admit a "strict angle structure", which is a necessary condition for a triangulation to be geometric. In particular, every knot or link complement in S^3 that is hyperbolic has such a triangulation. This is joint work with Craig D. Hodgson and J. Hyam Rubinstein. --------------------------------------------------- Web site for Geometry Seminar is at: http://www.maths.usyd.edu.au/u/SemConf/Geometry/index.html